Improvement in corn-harrows



Born-Harrow.

2 Sheets Sheet 1.

M0808 Ml GK.

Patented June1,1875.

( r a q O o o o G o 0 o l I o o WITNESSES- 0 o 0 uvgfion W M/ffm?) vAttorneys THE GRAPHIC CO.PHDTO LITH.39 Bu" PARK PL\0E,N Y

2 Sheet s--Sheet 2.

1. McCORMIGK. Burn-Harrow.

N0.l64,()]3 Patentedluneh'1875.

, INVBliITOR W gon mam? WITNESSES I 4 Attorneys THE GRAPHIC C0. PHOTO-LITH-39 & 41 PARK PLACE, N.Y.

UNITED STA'r s PATENT OFFI E.

JAMESMOCORMIOK, on PEORIA, rnnnvorsfi 1 IMPROVEMENT IN CORN-HARROWS.

Specification forming part of Letters Patent No. 164,013, dated June 1,1875; application filed August 29, 1874.

.To all whom it may concern.-

Be it known that I, Jar/res McOoRMrcK, of Peoria, in the county ofPeoria and State of Illinois, have invented a new and valuableImprovement in Corn-Harrow; and I do here by declare that the followingis a full, clear, and exact description of the construction andoperation of the same, reference being had to the annexed drawingsmaking a part of this specification, and to the letters and figures ofreference marked thereon.

Figure 1 of the drawing is a representation of va section view of mycorn-harrow. Fig. 2 is a side view. Fig. 3 is a plan view, and Figs. 4and 5 are transverse sectional views on lines :10 w and 3 y of Fig. 3.

This invention has relation to implements for harrowing corn and thenovelty c011- sists in the employment of certain devices for theimprovement of the construction of a harrow, as will be hereinafter morefully set forth.

In the annexed drawing, A designates the longitudinal tooth-bearing barsof my improved harrow, each having a suitable number of teeth andconverging toward a common center in the rear, as shown in Fig. 3. Thespace between the said harrows is, in general terms, about equal to thedistance between the rows in a field of corn, and it is intended thatthe growing corn shall pass between the barrow-bars A, and thus escapethe action of the teeth a. In this manner the said teeth will thoroughlyeradicate and tear up any weeds growing between the cornhills, and yetin no wayendanger the young corn.

The bars A are rigidly secured together by means of metal braces B B,whose central portions situated between the inner bars is provided withbridged portions b I) raised above the horizontal part of the saidbraces, as indicated in Figs. 4 and 5. The rear brace B is provided witha rectilinear brace-rod, c, which passes from side to side through thebridge I), and is then secured to the exterior braces d by means of asuitable bolt and 11", the free ends of the said braces being firmlyattached to a tooth, a, upon the rear ends of the outer bars of thebarrow-frame. The

i e of which is straight, and is removably but rigidly secured to therear bridge b, its front end being stepped in the space a, between thebrace c and the bridge I). When thus stepped the handles will have aninclination to the left, as shown in Fig. 3, and will be in position tobe. conveniently held by a righthanded man walking in a furrow upon theleft of the implement. When the front end of the said handle is steppedin the space w the rear ends will incline to the right, when they willbe in an equally convenient position, to be held by a left-handedoperator. These handles are also nearly parallel to the main frame ofthe harrow, and hence the downward pressure of the driver being butslight the teeth will not be unnecessarily driven into the soil.

Upon the upper surface of the harrowframe is secured, in suitablebearings, the axle E of two transportingwheels, F, the spindles of whichare upon a downwardlybent portion, f, as shown in dotted lines, Fig. 2.The central portion of this axle is provided with a crank-arm, G, shownin Fig. 3, to which is rigidly secured one end of a lever, H. V

When this lever is thrust downward and rearward in the position shown inFig. 2 the body of the harrow will be raised from the ground,disengaging the teeth a therefrom, and permitting the implement to bedriven to any desired point.

What I claim as new, and desire to secure by Letters Patent, is

1. The arch B, having the brace c and In testimony that I claim theabove I have openings 00 and m, in combination with the hereuntosubscribed my name in the presence removable and adjustable plowhandleD, subof two witnesses.

stantially as and for the purpose set forth. JAMES MCCORMICK.

2. In combination with the draft-pole c, the Witnesses: removable rod1", attached in the manner as I. P. MCDOWELL,

described, and for the purpose set forth. W. G. MCDOWELL. l

